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Gobiiformes (Gobies) >
Gobiidae (Gobies) > Gobionellinae
Etymology: Mugilogobius: Latin, mugil, -ilis = grey mullet + Latin, gobius = gidgeon (Ref. 45335); filifer: Named for the elongate first dorsal fin present in adult males ('filum' = thread or filament; 'fer' = suffix meaning to bear or carry).
More on author: Larson.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic. Tropical
Oceania: northern Australia and eastern Papua New Guinea.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 3.9 cm SL male/unsexed; (Ref. 43716)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 7; Dorsal soft rays (total): 7; Anal spines: 1; Anal soft rays: 7; Vertebrae: 26. Light brown to grey body with 7 - 9 short oblique dark blotches, bars or chevrons on sides, bars usually broken up into off-set pairs of blotches, anteriormost body marking a dark oblique shoulder bar, head with radiate or reticulate pattern of brown lines, broad brown band crossing branchiostegal membranes on underside of head (Ref. 43716). Second dorsal and anal rays always I,7; longitudinal scales 29-40; TRB 9-13; predorsal scales 13-21, small, reaching close up behind eyes, anteriormost scale somewhat larger than rest; scales on body mostly ctenoid; first spine of dorsal fin usually longest, filamentous (usually white and conspicuous) in adult males (Ref. 43716). Caudal fin rounded (Ref. 43716).
Facultative air-breathing in the genus (Ref. 126274); Inhabits mangrove creeks and estuaries, sometimes well into freshwater influence (Ref. 43716).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Larson, H.K., 2001. A revision of the gobiid fish genus Mugilogobius (Teleostei: Gobioidei), and its systematic placement. Rec. West. Aust. Mus. (Suppl. No. 62):1-233. (Ref. 43716)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00444 - 0.02153), b=3.04 (2.85 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.3 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).